MANCHESTER - A city man is charged as an armed career criminal, the result of an undercover investigation into heroin drug dealing.

Robert Doane, 26, of 151 Sagamore St., became the subject of a drug investigation after police learned he was selling heroin out of his residence, according to a news release.

Detectives set up surveillance of his home on Jan. 29, but Doane spotted them and, suspicious of their unmarked police car, refused to complete a heroin deal with two men outside his home.

A week later, state Probation and Parole officer, together with police, conducted a check on Doane at his Sagamore Street address. Doane was not home but police said they recovered a small quantity of drugs along with a gun that had been reported stolen Jan. 7 from a car parked in the lot at Target in Hooksett.

Doane was picked up that same day on a parole violation and returned to the New Hampshire State Prison.

On Wednesday, police charged him with receiving stolen property; convicted felon in possession of a firearm; attempted sale of a narcotic; possession of a narcotic; and being an armed career criminal.

Doane has a fairly long criminal record dating back to 2004, according to Jeffrey Lyons, spokesman for the state Department of Corrections.